Nilamalagiyamangalam is a village in Tiruvadanai tehsil in district of Ramanathapuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Nilamalagiyamangalam was 1,107 which includes 556 males and 551 females. Nilamalagiyamangalam covers 468.7 ha area. Pincode of Nilamalagiyamangalam is 623315.